DE602004009381D1 - Vacuum brake booster with shortened free travel and braking system with such an amplifier - Google Patents

Vacuum brake booster with shortened free travel and braking system with such an amplifier

Info

Publication number
DE602004009381D1
DE602004009381D1 DE602004009381T DE602004009381T DE602004009381D1 DE 602004009381 D1 DE602004009381 D1 DE 602004009381D1 DE 602004009381 T DE602004009381 T DE 602004009381T DE 602004009381 T DE602004009381 T DE 602004009381T DE 602004009381 D1 DE602004009381 D1 DE 602004009381D1
Authority
DE
Germany
Prior art keywords
amplifier
skirt
braking system
brake booster
vacuum brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602004009381T
Other languages
German (de)
Inventor
Bacardit Juan Simon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of DE602004009381D1 publication Critical patent/DE602004009381D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/569—Vacuum systems indirect, i.e. vacuum booster units characterised by piston details, e.g. construction, mounting of diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
    • B60T13/575—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices using resilient discs or pads

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

A skirt (10) can slide axially relative to a pneumatic piston (16) over a defined travel in a first phase of a braking action. The skirt transmits a pneumatic boost force to the hydraulic piston of a master cylinder via its central portion. The skirt takes the pneumatic piston along with it via an annular plate (100) when the skirt has completed the defined travel.
DE602004009381T 2003-10-06 2004-10-05 Vacuum brake booster with shortened free travel and braking system with such an amplifier Active DE602004009381D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0311696A FR2860473B1 (en) 2003-10-06 2003-10-06 PNEUMATIC ASSISTANCE ASSISTOR FOR REDUCED DEAD STROKE BRAKING AND BRAKE SYSTEM COMPRISING SUCH A SERVOMOTOR

Publications (1)

Publication Number Publication Date
DE602004009381D1 true DE602004009381D1 (en) 2007-11-22

Family

ID=34307467

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004009381T Active DE602004009381D1 (en) 2003-10-06 2004-10-05 Vacuum brake booster with shortened free travel and braking system with such an amplifier

Country Status (6)

Country Link
US (1) US7051640B2 (en)
EP (1) EP1522478B1 (en)
JP (1) JP2005132352A (en)
AT (1) ATE375278T1 (en)
DE (1) DE602004009381D1 (en)
FR (1) FR2860473B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3992488A1 (en) * 2020-10-30 2022-05-04 ZF CV Systems Europe BV Pneumatic service brake actuator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69301611T2 (en) * 1992-09-30 1996-07-25 Alliedsignal Europ Services BRAKE POWER AMPLIFIER WITH DELAYED HYDRAULIC REACTION
FR2696143B1 (en) * 1992-09-30 1994-12-02 Alliedsignal Europ Services Assisted braking device with slowed down hydraulic reaction.
FR2713181B1 (en) * 1993-11-29 1996-02-09 Alliedsignal Europ Services Brake assist with concealed travel and guaranteed gain.
FR2809066B1 (en) * 2000-05-22 2002-08-09 Bosch Sist De Frenado Sl SERVOMOTOR COMPRISING AN EXPANDABLE UNIDIRECTIONAL CLUTCH
FR2812257B1 (en) * 2000-07-25 2002-12-27 Bosch Sist De Frenado Sl SERVOMOTOR FOR EMERGENCY BRAKING INCLUDING MEANS OF SOUNDPROOFING
US6880447B2 (en) * 2001-02-15 2005-04-19 Continental Teves Ag & Co. Ohg Brake force transmission device for a brake force amplifier

Also Published As

Publication number Publication date
ATE375278T1 (en) 2007-10-15
US7051640B2 (en) 2006-05-30
EP1522478B1 (en) 2007-10-10
EP1522478A1 (en) 2005-04-13
FR2860473B1 (en) 2007-01-12
FR2860473A1 (en) 2005-04-08
US20050072297A1 (en) 2005-04-07
JP2005132352A (en) 2005-05-26

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Legal Events

Date Code Title Description
8332 No legal effect for de